Bookbinder



N. H. STUART Sept. 6, 1932.

BOOKBINDER Filed Feb. 8. 1950 2 Sheets-Sheet l Aifqmgy v N. H. STUARTSept. 6, 1932,

BGOKBINDER Filed Feb. 8, 1930 2 Sheets-Sheet 2 w mm% 3 M d M PatentedSept. 6, 1932 UNITED STAT S "PATENT ori ice 1 NicHoLAs vH. STUART, orBUFFALO, NEW YORK, ASSIGNOR To REMINGTON RAND; ma,

or BUFFALO, NEW YORK 1 oonBINDER W Application. filed Fe rua s, 1930.Serial negates.

This invention relates to book binders and it has particular referenceto a bind'er'adapted to hold a plurality of sheets or leaves w th;

in a cover in a detachable manner.

lore specifically,, the invention contemplates the provision of a binderhavmg' a cover within which are disposed a number of binge members orpins having fastening devices pivotally mounted thereon for detachableinterlocking engagementwith other elements adapted to hold the leavestogether.

In the specific .embodiment of the invention hereinafter described andillustrated, thefastening device is formed with a plate andslide" which,by propermanip'ulation, either reveal or close an aperture of suchsizeas to permit of the passage therethroughof a stud head The stiid head isformed on a plate orstrip provided with prongs forimpaling a number ofsheets of paper. When the aperture 1n the fastener is revealed, 'thefastener may be dislodged from or engaged with the stud head, to permitof the addition or removal of.

., sheets, and when the aperture is closed around the stud head, theleaves are firmly within the cover. Associated with the fasteningassembly and forminga part thereof are one or more spacers which areemployed'to I obtain the correct spacing of the pivoted i of a stackofassembled leaves.

fasteners relative the thickness-of the binder and included leaves, andalso to reinforce the book cover and to maintain the parts properrelation; v

.The invention provides a book binder of the removable leaf type whichis simple in construction, which retains the sheets firmly in place, andwhich permits of the removal or insertion of a leaf 'on either front orback The various objects and advantages of the invention may beunderstood from the following description of a specific embodiment ofthe principles thereof, illustrated inthe accompanying drawings,wherein, Z

1 is a fragmentary plan view of an open binder with the fasteningmeansdisengaged from the leaves. p

Fig. 2 is a fragmentary plan view of an 'openbook binderwith thefastening means engaging means for holding the le'aves;to-'

gether.

, F ig, 3

of the leaf-impali'ng means;

Fig. ,4; is a cross-sectional view of a closed book binder taken on theline44 of Fi'gi'l.

1 Fig. 5 is a cross-sectional view ofa spacing strip taken onthe line5'5 of Fig.1.

Fig. 6 is a perspective view ofthe several elements entering intothefastening amt.

Fig; 7 1s a perspective view of the several elements entering into thespacing un'it'ad'apted to associated with the fastening er ments. i

Fig. 8 is a fragmentary perspective view of an assembled book binderwith the'fastem device;

ing device detached from the leaf-imp'a'ling- The cover unit may besimilar in construction to any type of book cover; The portions 11 and12 may be stiif or flexible but the p'o'r-1 is a cross-sectional viewtaken on the line 3 8 of Fig. 1,.showing the construction tion 13 shouldbe flexible as'is the case with c all types 'ofbinders.

On the inside'fa'ces of the portions 11 and 12 adjacent "thejunctions'of these portions with the back 13, are a plurality of hinge members 1 1which are riveted or otherwise secured to the covers as indicated by thenumeral 15. I Any number of these hinges may be employed depending uponthe size of the'book. In the drawings four hinge members are shown andthis will usually s uf fice for ordinary purposes, 'Each hinge member 14is formed of 'sheet-metal or similar material and is provided withspaced pin bearings '16 adjacent its edge, which is adapted to bedisposed adjacent the junction of the front or back cover and'the back13 of the cover 10. The bearings 16 may be formed by rolling the edge ofthesheet material into cylindrical form; The bearings 16 are spacedandthe metal is cut awaybetween them, as

indicatedby the reference numeral 17, to.

. provide a pocket in which other elements of is closed. It is desirableto position pairs of hinge members 14 in aligned relation on the covers11 and 12.

A plurality of pins 18, provided with bent ends 19 to facilitate theirinsertion or removal, pass through the pin bearings 16. Mounted upon.the intermediate portion 21 of the pin 18 is a fastening deviceindicated generally by the reference numeral 22 and shown in detail inFig. 6. device consists of a plate member 23 provided along one edgewith a cylindrically turned portion 24 forming a bearing adapted tosurround the pin 18. A portion of the same edge is not curled however,but formsa straight projecting finger 25. which limits the rotation ofthe plate 23 on the pin 18. This limitation of rotation facilitatesmanipulation of the fastener as a unit. The opposite edge of the plate23 is bent at right-angles to form a flange 26 which serves as a guideand retaining means for a slide member 27. On the face of the plate 23is a headed stud 28 adapted to pass through a slot 29 formed on theslide 27. Belowthe stud 28 in the plate 23 is a circular aperture 31.

The slot 29 formed in the slide 27 is elongated and it terminates at oneend in an enlarged circular portion 32 of substantially the samediameter as the aperture 31 in the plate 23. The slide is also formedwith angularly offset ends 33 and 34. The two elements, (the plate 23and the slide 27), are interlocked for sliding movement by psi-.

-, tioning the slide 27, formed in the manner shown, over the plate 23,and subsequently passing the stud 28 through the plate and the slot 29.Or, one end of the slide 27 may be straightened out and the portion 32of the slot 29 positioned over the stud 28 so that the slide 27 may bemoved along the plate 23 with the head of the stud 28 engaging thesurface of the slide 27 adjacent the narrow portion of the slot 29. Thenthe straight end of the slide 27 may be bent into the positionillustrated.

" When assembled, it will be apparent that movement of the slide 27 overthe plate 23 in one direction permits of the registry of the apertures31 and 32, while movement in the opposite direction reduces theeffective area of the aperture 31 by positioning the'narro'w portion ofthe slot 29 over segments of the cylindrical hole 31.

This 'key hole lock type of fastener is pivotally mounted on the pin 18between the pin bearings 16. It is adapted to be swung toward or awayfrom a pile of sheets 35 which may be assembled in the binder.

i As illustrated best in Fig. 3, the pile of book leaves 35 are providedwith a plurality of aligned marginal perforations 36, which permit ofthe passage of leaf-impaling means collectively securing the sheetstogether. The impaling means herein delineated consists of v a pair ofelongated flat metal plates :37 each This fastening of which is providedwith alternating long hollow leaf-impaling bars 38 and shortcomplementary studs 39. If desired, the bars 38 may be made in twosections that may be screwed together in order to permit of the linearadjustment of the bars. The outer section of each bar 38 is formed withlongitudinally extendin aperture adapted to re ceive the pin 39 formedon the opposite plat 37. It may be observed that with this-construction, either plate 37 may be removed from the stack of leaves 35together with a number of leaves, so as to give ready access to a sheetadjacent either face of the stack without destroying the alignment ofthe apertures 36.

Disposed on the outer surfaces of the plates 37, and to be aligned withthe apertures 31 in the plates 23, are studs 41 formed with a recessedneck and an enlarged head 43. When the fastener is brought over the stud41 with the slide 27 so moved as to reveal the maximum effective area ofthe aperture 31, the head 43 of the stud 41 be pushed through the nowaligned apertures 31 and 32, thereby effecting the engagement of theplate and the fastener 22. By means of this immediate connection thestack of leaves 35 may be firmly bound between the covers 11 and 12 bysliding member 27 in the opposite direction, so that the narrow portionof the aperture 29 engages the under side of he head 43.

This construction permits of the ready in troduction or removal of asheet from the stack 35 and the change may be made by operating thefasteners 22 secured to either front or rear coverof the book. Theleaves are firmly bound in position when the fasteners are locked, andhence the assembled volume possesses the desirable. features of apermanently bound'book while retaining the feature of interchangeabilityof leaves sought for in loose leaf binders.

While the binder as thus far described is, in and of itself operativeand highly useful, nevertheless it is susceptible of improvement by theinclusion of a spacing strip which serves to strengthen the binder andto effect a great range of adaptation of the book cover to stacks ofleaves of varying thicknesses. This spacing strip is referred to in theseveral assembled features bythe numeral 45 and it is illustrated indetail in Figs. 5 and 7.

The spacing strip is positioned between opposed pins 18, the recess 17of the hinge member 14 being so dimensioned as to accommodate pinbearings formed on the strip 45 on the mid portions 21 of the pins 18.Each strip 45 is made in two parts, and advantageously is formed of thinand resilient sheet-metal. One portion, 46, is formed along one edgewith spaced pin bearings-47 and is also formed with a plurality ofcentrally disposed regularly spaced holes 48. The other portion, 49, islikewise formed with pin bearwith slots 54 which extend below thesurfaceof the portion 46.

' Extending through the slots 54 and under the lower surface of theportion 46 is a bow spring of thin sheet-metal, having curled ends 56 toprevent its removal from the slots. The'bow 55 is provided at itsmid-portion with a pin 57 that normally passes through a registeringhole 48 in the member 46 and the hole 52 in the portion 49, therebylocking the portions 46 and 49 together. When the curled ends 56. aresqueezed between the fingers, however, the how 55 assumes the positionshown in dotted lines in Fig. 5, when the pin 57 clears the holes 48 and52, and so permits of longitudinal movement of the parts 46 and 49 toanother and more desired position.

In assembly, the portions 46 and 49 are positioned between oppositelydisposed hinge members, the pin 18 holding a spacing strip. section anda fastening unit 22 to each meniber 14. Depending upon the thickness ofthe stack of leaves 35, the length of the strip 45 is varied so that,when the book is closed, as indicated in Fig. 4, the strip 45 is ofproper length to relieve heavy strains from thefieX- ible back web 13.In closing the fasteners on the stack preparatory to locking, it will befound that proper adjustment of the strips 45 facilitates operation, thefasteners 22 swinging into the desired position by the link action ofthestrip 45.

, From the foregoing description, it will be apparent that I haveprovided a simple and rugged structure for firmly binding leavestogether in more or less permanent relation, and that the principles ofthe invention permit of wide departures in the various physicalembodiments which may be designed. It will be understood, therefore,that I do not desire the invention to be limited to the specificembodiment described, but that I intend to include such other structuresas embody the features set forth in the following claims.

What is claimed is: 1. A binder comprising a book cover hav- 5 ing frontand rear portions and a connecting web portion, hinge members securedwithin the front and rear portions adjacent the web,

2. A binder comprising a book cover, a hinge pin mounted within thecover adjacent the pivotal edge thereof, a plate provided with impalingmeans for collectively holding a plurality of leaves and formed with aprojecting stud having an enlarged head, and a fastener mounted on. thehinge pin and formed with an aperture having an enlarged portion adaptedto be aligned with said stud and means on the fastener for engaging theunder side of the stud headfor interlocking theplate and the fastener.

- 3. A binder comprising a hinge member provided with a pin bearing, apin in the bearing, a plate provided with an aperture, and a headedstud, said plate being mounted for rotation on the pin, a slide formedwith an elongated slot having an enlarged por-' rear cover, and abackweb interconnecting said covers for hinging movement, pin hearhinge pinsin the bearings, a fastener rotatably mounted on each pin, leaf-holdingmeans provided with portions adapted to interlock with said fasteners,and a spacing strip mounted on the pins to effect a predeterminedspacing of opposite fasteners and the covers by which they are carried.V

NICHOLAS H. STUART.

' spect to the hinge members, plates provided with impaling means forcollectively hold-- ing a plurality of leaves, and means on the platesengageable with thefasteners for lock ing cooperation therewith.

ings oppositely mounted within the covers,

